Successfully complete all operations in Episodes 1-5 and Z to unlock Episode 6.

Defusing the bomb in Episode 3

In Episode 3, there is a conference going on. There will be a bomb you must defuse. To unscrew the top, take your scalpel and turn the top left to the right, the top right to the left, the bottom left to the left, and the bottom right to the right. To level the power, take a peg and insert it into the first hole on the left side. Take the other peg and insert it into the third hole on the right side.